Window-screen



F. w. CRANE. WINDOW SCREEN.

APPLICATION FILED JUNCZB, l9l8.

I Q M w M OM MN AN W8 M N a m MW w 5 w. m W M d P p ww W NMQ ON z HM NBN 1 ON Ohm NM QM /%N Md 2 a 3 4. d x @N M 1 F. W. CRANE.

WINDOW SCREEN.

APPLICATION man JUNE 29, 191B.

Patented Nov. 25, 1919.

2 SHEETSSHEET 2.

- amomtoz Fwd Wflmiz a abtomv FRED W. CRANE, OF DEWEY, OKLAHOMA.

WINDOW-SCREEN.

Specification of Letters Patent.

' Patented Nov. 25, 1919.

Application filed June 29, 1918. Serial No. 242,614.

To all whom it may concern:

Be it known that I, FRED W. CRANE, a citizen of the United States,residing at Dewey, in the county of Washington and State of Oklahoma,have invented new and useful Improvements in Window-Screens, of whichthe following is a specification.

This invention is an improved automatic window screen connected to andoperated by the sash so that as the window is opened the screen isautomatically placed, and, hence, the window is protected at all timesagainst the entrance of flies and other insects, the inventionconsisting in the construction, combination and arrangement of deviceshereinafter described and claimed.

One' object of the invention is to provide an improved flexible windowscreen which is attached at one end to a roller for winding thereon andunrolling therefrom and is adapted to be connected at the opposite endto a window sash for operation thereby. A further object is to provideimproved means for actuating the roller to cause the latter to roll upthe screen when the sash is moved to closed position. A further objectof the invention being to provide improved means for detachablyconnecting the outer end of the screen to the sash.

In the accompanying drawings Figure 1 is an elevation, partly insection, of a portion of a window frame provided with sashes andautomatically operating screens in accordance with this invention,thesashes being shown in partly opened position.

Fig. 2 is a vertical section taken in the plane indicated by the lines bb of Fig. 1.

Fig. 3 is a detail vertical section taken on the lines a a, of Fig. 1.

ig. 4 is partly an elevation and partly a sectional view, showing amodified form of this invention.

Fig. 5 is a vertical sectional view on the plane indicated by the linecc of F1'g. 4;.

Fig. 6 is a similar view on the plane indicated by the line H of Fig. 4.

Fig. 7 comprises disconnected perspectives of the parts in theconnecting construction between the screens and the sashes.

Referring first to the form of the nvention shown in Figs. 1, 2 and 3,the window frame 1 is provided with the usual upper sash 2 and the lowersash 3' and each sash is provided in one of its vertical sides with arack 4. A screen 5 is provided for the upper is secured between thefaces of the window frame at one side thereof, the'inner side of thesaid gear projecting through an opening 13 in one vertical side of theframe and engaging the rack bar of said upper sash so that when the sashis raised or lowered, the

said gear is rotated in one direction or the other, according to themovement of the sash.

A vertical shaft 14 is mounted in bearings 15 with which the bracket 12is provided and is also mounted in a bearing 16, in one of the bearingbrackets 7 and has a bevel gear 17 at its upper end which engages theteeth of the bevel gear 8 on the under side of the latter, the saidshaft being provided near its lower end with a similar gear 18 whichengages the bevel teeth of the gear 9 at the lower side of the latter.

The free end of the screen is attached to the upper end of the uppersash. 'hen the upper sash is lowered it draws down the screen, causingthe screen to unroll from the roller and to cover the space in the upperportion of the Window frame above said upper sash. Owing to theengagement of the gear 9 with the rack bar of the upper sash, said gearrotates when the sash is operated and the shaft 14 being geared to thegear 9 and also to the gear 8 which is carried by the roller 6, saidroller is positively turned when the sash is operated in eitherdirection.

Hence, when the sash is raised. the roller is revolved in the requireddirection to roll up the screen and when the'sash is lowered the rolleris permitted to turn in the reverse direction so as to unroll the screenas will be understood.

A roller 6* with a screen 5 is provided for the lower sash, said rollerhaving a gear 8 enga ed by a gear 17 on a vertical shaft 14 WlllCllvertical shaft has a gear 1b which engages the rack bar of said lowersash, each of the said sashes being provided with a screen and operatingmechanism therefor identical in construction with that of the screenoperating mechanism of the other sash.

The free end of each screen is provided with a stiffening bar 20 which;has eyes 21 projecting from one side thereof. Each sash has in its upperor lower side, as the case may be, a groove or channel 22 in the bottomof which is a longitudinally movable locking bar 23 held in place byscrews 2st which operate in longitudinal slots with which the lockingbar is provided.

Each of the said locking bars has openings 26 to receive the eyes 21 andalso has tongues 27 to engage said eyes when the locking bar is moved inone direction and thus cause the locking bar to coact with the eyes insecuring the free end of the screen to the sash. It will be understoodthat by movin the locking bar in the reverse direction tie screen willbe disconnected from the sash. Each locking bar has an operating arm 28provided with a finger piece 29 which projects out from and operates ina slot 80 in the sash, a slotted plate 31 being secured on the sash withits slot coincident with that of the slot 30.

At 23 are apertured bars secured to the sashes and against which thebars 20 and the adjacent screen portions are arranged as shown in Fig.2.

To prevent flies from entering the window when either or both of thesashes is in open or partly open position, the upper sash is provided onits lower side with a strip 32 of rubber or the like material whichbears against the glass or other sash. It will be understood from theforegoing that when the screens are attached to the sashes they areoperated automatically by the movement of the sashes, the screens beingrolled up on the rollers when the sashes are closed and unwound from therollers when and as the sashes are opened or partly opened, and, hence,the window is protected under all conditions against the entrance ofinsects.

In the form of the invention shown in Figs. 4 to 6, inclusive, eachroller 6" is operated with cords 33 wound thereon reversely to thescreen 5", the said cords engaging pulleys 34 with which the frame is prvided and being connected to one of the frames as at 35. Hence, when asash is moved to open position, it pulls its screen from and partlyunrolls the same from its roller and when the sash is moved in thereverse direction to closed position, the cords cause the roller to turnin the reverse direction and to roll up the screen.

The roller of each screen is provided with a ratchet mechanism 36 toenable the roller to be turned in one direction independently of itspulley for the purpose of tightening the screen.

While I have herein shown and described two forms of my invention, Iwould have it understood that changes may be made in the form,proportion and construction of the several arts, without departing fromthe spirit of my invention and within the scolpe of the appended claims.

aving thus described my invention, 1 claim 1. In combination with awindow frame and a sash mounted for longitudinalmovement therein, aroller mounted in the frame at a point beyond one end of the sash, saidroller having a gear, a flexible screen attached to the roller, andconnected to the sash, a rack on one side of the sash, a gear mounted inthe frame having spur teeth engaging the rack and also having bevelteeth. and a shaft also mounted in the frame and having a gear engagingthe gear of the roller and also having a gear engaging the bevel teethof the gear which engages the rack.

2. In combination with a window frame and a sash mounted forlongitudinal movement therein, a roller mounted in the frame at a pointbeyond one end of the sash, said roller having a gear, a flexible:screen attached to the roller, and connected to the sash, a rack on oneside of the sash, a gear mounted in the frame having spur teeth engagingthe rack and also having bevel teeth, and a shaft also mounted in theframe and having a gear engaging the gear of the roller and also havinga gear engaging the bevel teeth of the gear which engages the rack, abracket in the frame having bars for said shaft and for the last namedgear and a second bracket in the frame and having bearings for theroller and for the said shaft.

In testimony whereof I affix my signature.

FRED W. CRANE.

